Pulse inverter and power module for such a pulse inverter

A pulse inverter for a drive unit of an electrically powered vehicle, comprising:

• a mounting support to which a DC link capacitor and at least one power module are attached, which are in a welded joint, in particular a lap weld, via lugs, the power module comprising a hard encapsulation body in which the power module lug is embedded, the pulse inverter being manufactured in the following process steps:
• a premounting step in which the DC link capacitor and the power module are premounted on the mounting support;
• a welding step, in which the power module lug and a lug, overlapping therewith and leading to the DC link capacitor, are pressed onto a counterholder using a hold-down device with the formation of a zero gap, and then welded together,
• wherein the counterholder is a materially uniform and integral component of the hard encapsulation body so that in the welding step the overlapping lugs are supported on the load-bearing hard encapsulation material, which acts as a counterholder.